______ the advice of his friends,he would not have suffered such a heavy loss in his business.A.If he took B.If he should take C.Were he to take D.Had he taken选哪个?
问题描述：
______ the advice of his friends,he would not have suffered such a heavy loss in his business.
A.If he took B.If he should take C.Were he to take D.Had he taken
选哪个?
答
D
if引导的对过去的虚拟的倒装，还原为if they had taken
答
D
答
D. Had he taken
虚拟语气,与过去不符,相当于if he had taken